[Bug middle-end/19721] [meta-bug] optimizations that CSE still catches

[dnovillo at gcc dot gnu dot org]

------- Additional Comments From dnovillo at gcc dot gnu dot org  2005-01-31 15:26 -------

Similarly for em64t.

Build times for SPECint were reduced by 9.2%.
Build times for SPECfp were reduced by 7.5%.
Compiler bootstrap times were reduced by 4.4%.



Comparison between 20050127/spec-20050127.stats and 20050130/spec-20050130.stats
(base)

Compiler used in 20050127/spec-20050127.stats (Before)

Compiler:   gcc version 4.0.0 20050127 (experimental)
Base flags: -O2 -march=nocona
Peak flags: -O3 -march=nocona
Processor:  Genuine Intel(R) CPU 2.40GHz (1866.740 Mhz)
Memory:     4064772 kB
Cache:      1024 KB

Compiler used in 20050130/spec-20050130.stats (After)

Compiler:   gcc version 4.0.0 20050130 (experimental)
Base flags: -O2 -march=nocona
Peak flags: -O3 -march=nocona
Processor:  Genuine Intel(R) CPU 2.40GHz (1866.740 Mhz)
Memory:     4064772 kB
Cache:      1024 KB


SPECint results for base

    Benchmark   Before   After  % diff
     164.gzip   508.55  482.96  -  5.03%
      175.vpr   443.91  445.11  +  0.27%
      176.gcc   760.30  762.51  +  0.29%
      181.mcf   397.27  397.01  -  0.07%
   186.crafty   768.76  745.77  -  2.99%
   197.parser   458.55  458.83  +  0.06%
      252.eon     0.00    0.00  INF
  253.perlbmk   758.73  767.23  +  1.12%
      254.gap   836.44  834.91  -  0.18%
   255.vortex     0.00  850.80  INF
    256.bzip2   557.58  557.19  -  0.07%
    300.twolf   576.46  557.28  -  3.33%
         mean   587.55  602.07  +  2.47%


SPECfp result for base

    Benchmark   Before   After  % diff
  168.wupwise     0.00    0.00  INF
     171.swim     0.00    0.00  INF
    172.mgrid     0.00    0.00  INF
    173.applu     0.00    0.00  INF
     177.mesa   767.75  765.15  -  0.34%
   178.galgel     0.00    0.00  INF
      179.art   735.31  741.52  +  0.84%
   183.equake   1043.34 1007.83 -  3.40%
  187.facerec     0.00    0.00  INF
     188.ammp   558.49  536.86  -  3.87%
    189.lucas     0.00    0.00  INF
    191.fma3d     0.00    0.00  INF
 200.sixtrack     0.00    0.00  INF
     301.apsi     0.00    0.00  INF
         mean   757.33  744.36  -  1.71%

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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=19721